add debian packaging

this adds preliminary packaging for opm-parser.

issues discovered:
1) no doxy installed/generated
2) no pkgconfig file installed *
3) no cmake config mode files installed *
4) all libraries are unversioned *
5) libopm-json.so does not link to its dependencies (in particular libm) *
6) no debug symbols generated **
7) the only reason libParser.so does not conflict with something else is that nobody else has been fresh enough to grab such a general name. *

* - show stopper issue in my opinion
** - not a showstopper - i just use the tools instead of manual objcopy as the other modules do.